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Author Topic: 40M. Rotary dipole  (Read 2309 times)
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TA4AU
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« on: February 27, 2012, 08:19:59 AM »

Hi everyone

We built 40M. traps rotary dipole but we have problem empedance and SWR.



Traps is 4 cm. diameter pvc pipe and 16 tour.
Stars is 3 x 51 cm. aluminum cord
Hairpin macth is 2 x 51.5 and 33 cm.
I have problem at 40 M. SWR and very low empedance and my pro3 tuners not tune this antenna. also this antenna work at 12 m. i tune antenna very good work no problem but 40M. problem.
My next job use 1:2 balun (12 or 20 ohm to 50 ohm balun)
https://picasaweb.google.com/112487258095492067574/40MRotaryDipole#


what i make need help please.
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